侧深施氮对水稻产量及氮素吸收利用的影响

黄恒, 姜恒鑫, 刘光明, 袁嘉琦, 汪源, 赵灿, 王维领, 霍中洋, 许轲, 戴其根, 张洪程, 李德剑, 刘国林

Effects of side deep placement of nitrogen on rice yield and nitrogen use efficiency

HUANG Heng, JIANG Heng-Xin, LIU Guang-Ming, YUAN Jia-Qi, WANG Yuan, ZHAO Can, WANG Wei-Ling, HUO Zhong-Yang, XU Ke, DAI Qi-Gen, ZHANG Hong-Cheng, LI De-Jian, LIU Guo-Lin

表1 试验处理设计

Table 1 Experimental treatment design

处理 Treatment 基肥N Basic fertilizer N (kg hm-2) 分蘖肥N Tiller fertilizer N (kg hm-2) 穗肥N Earing fertilizer N (kg hm-2) 总N Total N (kg hm-2) 施肥次数Fertilization times 不施氮肥0N 0 0 0 0 0 常规施肥对照CFM 105 105 90 300 4 100%基肥一次性侧深施FM1 300 0 0 300 1 70%基肥侧深施+30%分蘖肥FM2 210 90 0 300 2 70%基肥侧深施+30%穗肥FM3 210 0 90 300 2 35%基肥侧深施+35%分蘖肥+30%穗肥FM4 105 105 90 300 4